We illustrate this by one example, but must refer to
[1]} for details. It concerns a 1-dimensional
space of cusp forms of weight \((0,33)\)  with a
character of order 2.
The Hecke eigenvalues of a generator of this space,
that we found, agree with a
congruence modulo 17093 of the type of congruences
predicted by Harder (see Harder's contribution to [2]}).
